flash on 2012-9-19

/**
 * Copyright mutantleg ( http://wonderfl.net/user/mutantleg )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/tz20
 */

package {
    import flash.events.Event;
    import flash.display.Sprite;
    public class FlashTest extends Sprite {
        public function FlashTest() {
            // write as3 code here..
         
         px = 200;
         py = 0;
         pa = 1.57;
        
         stage.addEventListener(Event.ENTER_FRAME, onEnter);   
        }//ctor
        
        public var px:Number = 0;
        public var py:Number = 0;
        public var vx:Number = 0;
        public var vy:Number = 0;
        public var pa:Number = 0;
        public var pn:int = 0;
        
        public function onEnter(e:Event):void
        {
            graphics.clear();
            graphics.lineStyle(2,0);
            
            graphics.drawCircle(px,py, 8);
            
            vx = Math.cos(pa)*4;
            vy = Math.sin(pa)*4;
            
            pn += 1;
            
            if (pn > 30 && pn < 40)
            { pa += 0.1; }
            
            if (pn > 50 && pn < 60)
            { pa -= 0.1; }
            
            px += vx;
            py += vy;
            
            if (py >= 350)
            {
             px = 200;
             py = 0;
             pa = 1.57;
             vx = 0;
             vy = 0;
             pn = 0;   
                
            }//endif
            
        }//onenter
        
    }//classend
}